Use this Luminance converter to compare values between related units. A photometric measurement known as luminance expresses how much light is shining in a specific direction per unit area of space. When falling within a specified solid angle, it indicates the amount of light that enters or is emitted from a specific location. The SI unit for luminance is the candela per square meter. Enter a value, choose the source and target units, and review the result without calculating the conversion by hand.
How to use the Luminance converter
Select Candela/Square Meter from the first dropdown and enter the value you want to convert.
Choose Candela/Square Centimeter in the second dropdown to set the target unit.
The calculator instantly shows the converted result.
Check the displayed result and adjust the input or units whenever you need to compare another value.
This tool is useful when a measurement is recorded in one luminance unit but a formula, specification, or comparison uses another. The result is formatted for readability, so use the displayed value as a quick conversion and retain appropriate precision for technical or scientific work.
Common Luminance conversions
A starting example is Candela/Square Meter to Candela/Square Centimeter. Other available combinations include Candela/Square Meter, Candela/Square Centimeter, Candela/Square Foot. Select the units that match the measurement you have and the unit required by your calculation or report.
The conversion is calculated from the unit definitions used by the calculator. Results can be rounded for display, so keep extra precision in your original value when the result will be used in a calculation.
How Luminance results are presented
The calculator converts the entered value from the selected source unit to the selected target unit, then formats the result for display. Very small or very large values may be shown in a compact numeric form. Check the displayed precision before using a result in a measurement, report, or further calculation.
Units available in this luminance converter
Candela/Square Meter
Candela/Square Centimeter
Candela/Square Foot
Candela/Square Inch
Kilocandela/Square Meter
Stilb
Lumen/Square Meter/Steradian
Lumen/Square Centimeter/Steradian
Lumen/Square Foot/Steradian
Nit
Millinit
Lambert
Millilambert
Foot-Lambert
Apostilb
Blondel
Bril
Skot
Example of Luminance conversion
Frequently asked questions about Luminance conversion
What is a Luminance converter?
It is an online calculator that changes a value from one luminance unit to another using the available unit definitions.
How do I convert luminance units quickly?
Enter a value, select the source unit, choose the target unit, and review the result. For a different comparison, change either unit or the input value.
Is this luminance converter free to use?
Yes. You can use it to compare values between the available luminance units without performing the conversion manually.